Loading metrics Open Access Peer-reviewed Research Article Hafez Sadeghi, Hannah-Sophie Braun, Berner Panti, Geert Opsomer, Osvaldo Bogado Pascottini Hafez Sadeghi, Hannah-Sophie Braun, Berner Panti, Geert Opsomer, Osvaldo Bogado Pascottini Published: January 28, 2022 https://doi.org/10.1371/journal.pone.0263409 Figures Abstract The assessment of polymorphonuclear leukocyte (PMN) proportions (%) of endometrial samples is the hallmark for subclinical endometritis (SCE) diagnosis.